Add or remove email addresses for a mailbox

Learn how to add or remove email addresses using the Exchange admin center EAC or by using the Exchange Management Shell.

You can use the EAC or the Exchange Management Shell to add or remove an email address for a user mailbox. You can configure more than one email address for the same mailbox. The additional addresses are called proxy addresses. A proxy address lets a user receive email that’s sent to a different email address. Any email message sent to the user's proxy address is delivered to their primary email address, which is also known as the primary SMTP address or the default reply address.

Note:

The procedures in this topic show how to add or remove email addresses for a user mailbox. You can use similar procedures to add or remove email addresses for other recipient types.

For additional management tasks related to managing recipients, see the "Recipients documentation" table in Recipients.

You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Recipient Provisioning Permissions" section in the Recipients Permissions topic.

In the list of user mailboxes, click the mailbox that you want to add an email address to, and then click Edit .

On the mailbox properties page, click Email Address.

Note:

On the Email Address page, the primary SMTP address is displayed in bold text in the address list, with the uppercase SMTP value in the Type column.

Click Add , and then click SMTP to add an SMTP email address to this mailbox.

Note:

SMTP is the default email address type. You can also add Exchange Unified Messaging (EUM) addresses or custom addresses to a mailbox. For more information, see "Change user mailbox properties" in the Manage user mailboxes topic.

Type the new SMTP address in the Email address box, and then click OK.

The new address is displayed in the list of email addresses for the selected mailbox.

The email addresses associated with a mailbox are contained in the EmailAddresses property for the mailbox. Because it can contain more than one email address, the EmailAddresses property is known as a multivalued property. The following examples show different ways to modify a multivalued property.

This example shows how to add an SMTP address to the mailbox of Dan Jump.

This example shows another way to add email addresses to a mailbox by specifying all addresses associated with the mailbox. In this example, danj@tailspintoys.com is the new email address that you want to add. The other two email addresses are existing addresses. The address with the case-sensitive qualifier SMTP is the primary SMTP address. You have to include all email addresses for the mailbox when you use this command syntax. If you don't, the addresses specified in the command will overwrite the existing addresses.

You can also remove an email address by omitting it from the command to set email addresses for a mailbox. For example, let's say Janet Schorr's mailbox has three email addresses: janets@contoso.com (the primary SMTP address), janets@corp.contoso.com, and janets@tailspintoys.com. To remove the address janets@corp.contoso.com, you would run the following command.

The column names in the first row of this CSV file (Mailbox,NewEmailAddress) are arbitrary. Whatever you use for column names, make sure you use the same column names in the Exchange Management Shell command.